FJ62 Running poorly/Idle issues

[jjhemin1982]

I have tried searching but haven't found a thread that seems quite discuss the issues I am having. Engine will start and drive but when I try to accelerate it sputters and has a serious lack of power. Once I finally get up to speed and just keep that pace it seems to run fine, but if I attempt to accelerate or god for bid come to a hill back to sputtering. Along this when I am at idle RPMs will drop off and on till it eventually dies. It will then start back up and if keep on the gas a bit it will stay running. I have changes fuel filter, checked for vacuum leaks, and thinking it may be cat issue pulled them and drilled them out(i know, this is no good, just till i get the new ones) and still having issues. I've got about 5,000 miles on plugs and wires. Any suggestions/advice would be appreciated.

 

[krzyabncanuck]

Does it do it just under load ? What happens if you just step on the gas pedal in park ?

 

[jjhemin1982]

I was actually just testing that, in park in revs just fine. Issue only occurs under load.

 

[infowarrior]

i have heard guys talk about this problem and fixed these sputter issues with an egr blockoff plate.

 

[jjhemin1982]

I'll see if I can find anymore info on those plates. Thanks. If I am not mistaken isn't the EGR primarily for California emissions compliance?

 

[73tlcv8]

Not getting enough fuel. Fuel pump, fuel filter, pressure regulator, injectors. I would start with checking fuel pressure.

 

[jjhemin1982]

I did change the filter I was really hoping to not have to get into the pump and what not but I will check into it, thank you.

 

[kurb]

Something somewhat similar happened to my rig and I found that taking off the intake manifold/ throttle body did wonders for me. Course I also had alot of sludge buildup. Probably wouldn't hurt to make sure your distributor hasn't slipped slightly out of timing as well. Kind of a shot in the dark but could try replacing the pcv valve. $6 with the gasket and if it hasn't been replaced in a while it couldn't hurt. If you're getting spark and air that only leaves fuel to be desired

 

[desmocruiser]

Check your intake hose for cracks, typically runs poorly at all RPM ranges when this happens, but worth taking a look.

Good luck with repair.